Loopless

I have heard that it is next to impossible to get sound onto a Red Epic. What is the deal with that? Has anyone succeeded? If so, then how did you do it? I would like to attach a Lectrosonics IFB to the camera, seta level, and walk away. Is that possible ? ? Somebody suggested that I try this adapter: http://actionproducts.ch/shop/product_info.php?products_id=157 Action Products Epic Audio Adapter